Pros
It has a great name in market research and will allow you to work with the top FMCG companies. At BASES, you will learn state-of-the-art modeling and analyses of marketing plans and innovation projects. Fun place to work.
Cons
Watch out for who your manager is (or group manager). This makes all the difference. In my first year in the company my department of 14 people had ZERO turnover. Not bad, hun? I loved to work there. Then one change of manager (not even my direct manager), took things down. In two years, almost everyone left. My group manager would demand long work hours from everyone - she would come in late and leave late, therefore she would make everybody else leave late as well. She had a flexible work schedule, others had to follow hers or else. Absolutely no respect for work-life balance. I participated in a all-analyst event to discuss the company's future and talk about problems other people in my team trusted me with and, the information that was supposed to be private and anonymous reached my managers and a few months later I was laid off. At BASES, you will have a limited set of skills extremely especialized that may not be relevant to other employers, especially if you are not in the entry level roles.